Fits Glock 17 Gen 3 OEM frames and Polymer80 PF940V2 aftermarket frames. This assembled upper ships function-checked at 3CR — install it on a completed Gen 3 lower, add sights or an optic, and you're ready for the range.

The slide carries a black cerakote finish over rear serrations for positive grip during press checks and malfunction drills. A black Nitride 9mm drop-in barrel is installed from the factory, along with the full 3CR Tactical slide completion kit.

What's installed:

• Rear-serrated Glock 17 slide in black cerakote
• Black Nitride 9mm drop-in barrel for Glock 17
• 3CR Tactical slide completion kit (channel liner, firing pin, extractor, springs, all internals)

What you still need:

• Sights or optic (not included; standard Glock dovetails)
• Completed Glock 17 Gen 3 lower (frame, trigger assembly, magazine)

Rack the slide 200-300 times before live fire to let the contact surfaces wear in. The action smooths out noticeably over the first 100 rounds — this is normal bed-in, not a fitment problem. Confirm your frame is a Glock 17 Gen 3 or PF940V2 before ordering.

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